/*
 * Copyright 2020 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

/**************************************************************************************************
 *** This file was autogenerated from GrHighContrastFilterEffect.fp; do not modify.
 **************************************************************************************************/
#ifndef GrHighContrastFilterEffect_DEFINED
#define GrHighContrastFilterEffect_DEFINED

#include "include/core/SkM44.h"
#include "include/core/SkTypes.h"

#include "include/effects/SkHighContrastFilter.h"

#include "src/gpu/GrFragmentProcessor.h"

class GrHighContrastFilterEffect : public GrFragmentProcessor {
public:
    static std::unique_ptr<GrFragmentProcessor> Make(std::unique_ptr<GrFragmentProcessor> inputFP,
                                                     const SkHighContrastConfig& config,
                                                     bool linearize) {
        float contrastMod = (1 + config.fContrast) / (1 - config.fContrast);

        return std::unique_ptr<GrFragmentProcessor>(new GrHighContrastFilterEffect(
                std::move(inputFP),
                contrastMod,
                contrastMod != 1.0,
                config.fGrayscale,
                config.fInvertStyle == SkHighContrastConfig::InvertStyle::kInvertBrightness,
                config.fInvertStyle == SkHighContrastConfig::InvertStyle::kInvertLightness,
                linearize));
    }
    GrHighContrastFilterEffect(const GrHighContrastFilterEffect& src);
    std::unique_ptr<GrFragmentProcessor> clone() const override;
    const char* name() const override { return "HighContrastFilterEffect"; }
    bool usesExplicitReturn() const override;
    float contrastMod;
    bool hasContrast;
    bool grayscale;
    bool invertBrightness;
    bool invertLightness;
    bool linearize;

private:
    GrHighContrastFilterEffect(std::unique_ptr<GrFragmentProcessor> inputFP,
                               float contrastMod,
                               bool hasContrast,
                               bool grayscale,
                               bool invertBrightness,
                               bool invertLightness,
                               bool linearize)
            : INHERITED(kGrHighContrastFilterEffect_ClassID,
                        (OptimizationFlags)kNone_OptimizationFlags)
            , contrastMod(contrastMod)
            , hasContrast(hasContrast)
            , grayscale(grayscale)
            , invertBrightness(invertBrightness)
            , invertLightness(invertLightness)
            , linearize(linearize) {
        this->registerChild(std::move(inputFP), SkSL::SampleUsage::PassThrough());
    }
    GrGLSLFragmentProcessor* onCreateGLSLInstance() const override;
    void onGetGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override;
    bool onIsEqual(const GrFragmentProcessor&) const override;
#if GR_TEST_UTILS
    SkString onDumpInfo() const override;
#endif
    GR_DECLARE_FRAGMENT_PROCESSOR_TEST
    using INHERITED = GrFragmentProcessor;
};
#endif